On October 10, 732, Franco-Burgundian forces under the command of the Merovingian majordomo Charles Martel inflicted a crushing defeat on the Arab conquerors of the Umayyad Caliphate. This marked the end of the Arab invasion of Europe.
After Charlemagne, the reconquest (liberation) of the territories conquered by the Arabs began, which lasted from 760 to 1492. The Battle of Poitiers was the result of twenty years of Arab conquests in Europe, which began in 711 with the invasion of Tariq ibn Ziyad.
By Poitiers, Islam had conquered the entire Middle East, North Africa, and the Iberian Peninsula. The Muslims penetrated into Central France and began to threaten even Paris. This forced the mayor of the city, Charles, who actually ruled the Frankish lands, to act. In the Battle of Poitiers, he had about 60-70 thousand fighters, and his opponent - the emir Abder Rahman - had about 50-60 thousand. The two armies lurked for six days, with neither commander deciding to attack.
The Christians suffered about 1,500 killed, while the casualties among the Muslims are unknown. However, their leader Abder Rahman fell on the battlefield, which predetermined the defeat.